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Home >> Toyota >> 1984 >> Celica Supra L >> Repair and Diagnosis >> Engine Performance >> System >> TCCS Engine Control System >> Component Testing >> Throttle Position Sensor (TPS)
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Throttle Position Sensor (TPS)

Turn ignition off and disconnect electrical connector at TPS. Insert a thickness gauge between throttle stop screw and throttle lever. Using an ohmmeter, check resistance values. If values are not as specified in chart, adjust or replace TPS.

Fig 1: Checking Throttle Position Sensor Perform adjustment before replacing.
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TPS RESISTANCE SPECIFICATIONS

Throttle Clearance Terminals Ohmmeter Reading
.024" (.60 mm) IDL - E1 Low Value
.024" (.60 mm) Psw - E1 Infinity
.024" (.60 mm) IDL - Psw Infinity
.037" (.95 mm) IDL - E1 Infinity
.037" (.95 mm) Psw - E1 Infinity
.037" (.95 mm) IDL - Psw Infinity
Fully Open IDL - E1 Infinity
Fully Open Psw - E1 Low Value
Fully Open IDL - Psw Infinity